Some further thoughts...if you are going to do much "pounding" on the axle, be sure to put on a nut or two to protect the threads on the axle.
If you encounter serious freezing of the axle, I suggest getting a long piece of threaded rod and creating a tool like a gear puller by fabricating a bushing for the outer face of the wheel fairing with lots of surface area that clears the end of the axle...and a large washer on the other end secured by a nut. and then pull the axle through by tightening another nut against the bushing. Likely would need a jam nut on the other end, of course. Lots of penetrating oil over a few days will help. Once it breaks free, you should be able to drive the axle out the rest of the way with the other tool I described (which also acts as an alignment device during reassembly). Before reassembly, be sure to file or polish out any burrs created on any of the parts due to any driving/pounding that you find necessary. It takes very little to prevent reassembly, as I discovered. The design is appallingly bad. It is almost impossible to get to the upper nuts on the attachment hardware for the brake caliper mounting plate. I ended up with a curved spanner that helped. They should have put nut plates on it. I was going to do so and had ordered angle nut plates, but they wouldn't work. Straight-lug nut plates would work. I measured .030 wear on my brake pads after 300 landings, so--after replacing them--decided that I wouldn't have to disassemble the wheels/brakes for the rest of my natural life. Best MLS On Sun, Aug 16, 2015 at 7:11 AM, Michael Stockhill <[email protected]> wrote: > Dear Mr. Audenaerde, > > I own an H-36 and maintain another owned by a friend. I rebuilt the > brakes and replaced tires on both this year. I don't have a specific > response to the evidently seized axle, but I do have a tool that may have > been fabricated by a previous owner for driving or pressing out the axle. > I'll try to get a photo to you later today. It was turned from an aluminum > rod and has a shoulder so it seats within the inner diameter of the axle. > You may find that loosening the four brake attachment bolts a bit may > relieve some binding on the axle. > > None of the four axles I dealt with were seized. On my aircraft, I did do > a modification on the inner faces of the wheel fairing, replacing the four > metric bolts with 1/4 inch AN countersunk machine screws to preclude > interference with the locknut and lock washer. I'll add a photo of that. > The bearing number is Timken 08231, and the axle OD I measured was 1.180 > inches/29.97 mm. > > I did find corrosion on the inner bore of the axles on my aircraft, which > I polished out and treated with primer and Boshield at reassembly. > > More later, > > Michael Stockhill > Polson, MT, USA > > On Sun, Aug 16, 2015 at 6:18 AM, Guy Audenaerde <[email protected]> > wrote: > >> My Dimona H36 Mk2 ser. 36267 build in 1988, equipped with Sauer >> S2100-1ss1 has 4550 hours on the airframe. >> It is three years in my ownership and i suspect that the maintenance of >> the main wheelbearings is urgently due. >> When i jack up the wheels and rotate the wheels they emit a "grinding" >> noise and have a lot of play. >> Question: can someone give me a detailed procedure for removing the axle >> and overhauling the wheelbearings. >> I removed the locking nut on the outside of the wheelfairing but did not >> succeed in getting the axle out of the fairing, >> despite carefull tapping on the extremities with a hardwooden block. >> I suspect that the pipes that hold the bearings in place are froozen on >> the central axle and prevent this axle of sliding out of the fairings; >> >> Awaiting 'instructions' >> Guy Audenaerde >> >> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> GRATIS >> animaties voor je e-mail >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> Klik >> hier! >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> <http://www.incredimail.com/?id=621163&did=10501&ppd=2842,201206281824,19,1,1&rui=146739762&app_test_id=0&sd=20150816> >> > >
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